# 2 problems that I need help on please...?

Question:1. Find the distance between (–4, 0) and (–5, –3) using the Distance Formula.

2. Simplify:
(6 + square root 3) (6 - square root 3)

well the distance formula is the

square root [(x2-x1)squared + (y2-y1)squared]

in this case you would do

square root [ (-5 - -4)squared + (-3 - 0)squared]

simplified this would be:

square root [ ( -1)squared _+ (-3)squared]

this would equal the square root of 10

number 2:

http://img510.imageshack.us/img510/7858/...

i couldn't do this one without some paper and pencil : )

i hope this helps, but be sure to check your answers because i'm not sure if these are completley correct.
ahh...school didn't start for me, what kinda math is this? My brain is in summer now...sorry can't help!
try math.com
D = √(x2 – x1)2 + (y2 – y1)2

(-4, 0) (-5, -3)
(x1, y2) (x2 – y2)

D = √(-5 – -4)2 + (-3 – 0)2

D = √(-1)2 + (-3)2

D = √1+ 9

D = √10

SECOND ONE:

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